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| 1 | nsights into battles between Mycobacterium tuberculosis and macrophages显示文摘 | Guanghua Xu Jing Wang George Fu Gao Cui Hua Liu | 2014 | Protein & Cell2014，5，10： | 22 |
| 2 | A New Cross Discipline—Extenics显示文摘Extenics is a new discipline which solves con- tradiction problems. It studies the extensibility of things and the laws and methods of exploitation and innovation with formalized model. This paper briefly introduces its study objects, theoretical frame, methodological system, application, scientific sig- nificance, utility value and prospect of develop- | Cai Wen Yang Chunyan Wang Guanghua | 2005 | Science Foundation in China2005，13，1： | 21 |
| 3 | Feature Extraction and Recognition for Rolling Element Bearing Fault Utilizing Short-Time Fourier Transform and Non-negative Matrix Factorization显示文摘Due to the non-stationary characteristics of vibration signals acquired from rolling element bearing fault, the time-frequency analysis is often applied to describe the local information of these unstable signals smartly. However, it is difficult to classify the high dimensional feature matrix directly because of too large dimensions for many classifiers. This paper combines the concepts of time-frequency distribution(TFD) with non-negative matrix factorization(NMF), and proposes a novel TFD matrix factorization method to enhance representation and identification of bearing fault. Throughout this method, the TFD of a vibration signal is firstly accomplished to describe the localized faults with short-time Fourier transform(STFT). Then, the supervised NMF mapping is adopted to extract the fault features from TFD. Meanwhile, the fault samples can be clustered and recognized automatically by using the clustering property of NMF. The proposed method takes advantages of the NMF in the parts-based representation and the adaptive clustering. The localized fault features of interest can be extracted as well. To evaluate the performance of the proposed method, the 9 kinds of the bearing fault on a test bench is performed. The proposed method can effectively identify the fault severity and different fault types. Moreover, in comparison with the artificial neural network(ANN), NMF yields 99.3% mean accuracy which is much superior to ANN. This research presents a simple and practical resolution for the fault diagnosis problem of rolling element bearing in high dimensional feature space. | GAO Huizhong LIANG Lin CHEN Xiaoguang XU Guanghua | 2015 | Chinese Journal of Mechanical Engineering2015，28，1： | 21 |
| 4 | Genetic analysis and gene mapping of a dominant presenescing leaf gene PSL3 in rice (Oryza sativa L.)显示文摘Leaf senescence as an active process is essential for plant survival and reproduction.However,premature senility is harmful to agricultural production.In this study,a rice mutant,named as psl3 (presescing leaf 3) isolated from EMS-treated Jinhui 10,displays obvious premature senility features both in morphological and physiological level.Genetic analysis showed that mutant trait was controlled by a single dominant gene (PSL3),which was located on rice chromosome 7 between SSR marker c7sr1 and InDel marker ID10 with an interval of 53.5 kb.The result may be useful for the isolation of the PSL3 gene. | FANG LiKui LI YunFeng GONG XiaoPing SANG XianChun LING YingHua WANG XiaoWen CONG YunFei HE GuangHua | 2010 | Chinese Science Bulletin2010，55，23： | 20 |
| 5 | Comparison of Chlorophyll and Photosynthesis Parameters of Floating and Attached Ulva prolifera显示文摘In mid-May 2008 a serious green tide caused mainly by floating Ulva prolifera(Mller) J.Agardh(Chlorophyta,Ulvales) thalli struck the coastal area of Qingdao,China.To understand the present physiological conditions of the floating alga,in this work both laboratory and field investigations were conducted on the floating U.prolifera thalli in comparison with the attached U.prolifera thalli collected from the area.The floating thalli of three distinctively different colors and attached thalli at three different stages of sporangium formation process were characterized under a microscope,while their photosynthetic parameters were determined with chlorophyll fluorescence technology.On the other hand,the sporangium formation status of the floating U.prolifera thalli was surveyed both in the laboratory and in the field.Comparisons showed that both of the paired morphological characteristics and the paired physiological parameters of the floating and attached U.prolifera thalli were consistent.Furthermore,some spores were confirmed in the field and some motile particles were found within the floating thalli.These results suggest that the floating U.prolifera thalli with different colors could be at different stages of sporangium formation.However,our results also showed that the floating alga thalli have only a limited reproductive potential.This might limit the duration and the further geographic expansion of the green algal bloom. | Apeng Lin Songdong Shen Guangce Wang Qianqian Yi Hongjin Qiao Jianfeng Niu Guanghua Pan | 2011 | Journal of Integrative Plant Biology2011，53，1： | 20 |
| 6 | Soil Bacterial Communities Under Different Long-Term Fertilization Regimes in Three Locations Across the Black Soil Region of Northeast China显示文摘Although soil bacteria play critical roles in agro-ecosystems, the knowledge of their response to long-term fertilization across the black soil region of Northeast China is limited. In this study, we sequenced 16 S rRNA genes to assess the effects of four long-term fertilization regimes—non-fertilization(NoF), chemical fertilizer(CF), manure(M), and chemical fertilizer plus manure(CFM)—on soil properties and bacterial communities in three locations, the northern, middle, and southern parts, across the black soil region. Results showed that the influence of fertilization regimes on soil properties varied significantly among the three locations. Manure fertilization significantly increased microbial biomass carbon and relative abundance of copiotrophic bacteria. Principal component analysis(PCA)showed that the total bacterial communities were separated into three groups according to the sampling location despite long-term fertilization, and that soil pH was the most important factor in shifting bacterial communities. In addition, similar fertilization regimes resulted in different influences on bacterial community composition, and the most influential soil properties varied among the three locations. Our results highlighted that geographical separation was a more dominant factor affecting bacterial communities than fertilization, and that long-term similar fertilization regimes did not induce consistent changes in bacterial community composition in the black soil region. | HU Xiaojing LIU Junjie WEI Dan ZHU Ping CUI Xi'an ZHOU Baoku CHEN Xueli JIN Jian LIU Xiaobing WANG Guanghua | 2018 | Pedosphere2018，28，5： | 17 |
| 7 | What Drove Housing Wealth Inequality in China?显示文摘Although China is experiencing a deterioration in wealth distribution where housing is playing a dominant role,this issue has received scant research attention despite its importance.Combining four rounds of the China Household Finance Survey(CHFS)data,this paper measures and discusses wealth inequality in China,with a special emphasis on the contribution of housing.Our analysis reveals that housing is the largest contributor to wealth inequality,responsible for around 70 percent of total wealth inequality,and its contribution has been increasing over time.Our research ejforts have focused on the housing wealth disparity,exploring its composition from alternative perspectives.The results show that housing wealth inequality has also been rising over time and an absolute majority of housing wealth inequality is due to within-group gaps.Finally,we employ Wan's(2004)regression-based decomposition methodology to quantify the contributions of dijferent determinants to housing wealth disparity in China,and to demonstrate serious biases in the conventional approach that is often used to analyze housing wealth inequality. | Guanghua Wan Chen Wang Yu Wu | 2021 | China & World Economy2021，29，1： | 14 |
| 8 | Study on the photosynthetic performances of Enteromorpha prolifera collected from the surface and bottom of the sea of Qingdao sea area显示文摘In this work, the photosynthetic performances of Enteromorpha prolifera thalli collected from the sur- face and bottom of the sea of Qingdao sea area were studied with chlorophyll fluorescence and oxy- graph technology. The samples with the highest photosynthetic activity among their kinds, the floating thalli from the sea surface of the south of the Qingdao Olympic Sailing Center and the sedimentary thalli from the mud surface of the bottom Tuandao bay, were chosen as representatives of surface thalli and bottom thalli, respectively. The results showed that the maximal PSII quantum yield of the floating thalli was significantly lower than the normal level although their photosynthetic activities were relatively high; the photosynthetic potential of the thalli form the mud surface was extremely low. Thus, it is indicated that the floating thalli are seriously stressed by their environment and the thalli from the mud surface are already dead or are dying. On the other hand, the results of the laboratory cultivation showed that the sedimentary thalli cannot regain normal photosynthetic activity even under normal illumination condi- tions. Thus, the thalli from the mud surface cannot become reproductive source of the alga even if they can reach sea surface again. Therefore, a preliminary conclusion can be reached that, up to mid-July 2008, the environmental conditions of the Qingdao sea area are not suitable for the growth of the alga E. prolifera and for this reason the biomass of E. prolifera, in the area, could be declining. | LIN APeng WANG Chao QIAO HongJin PAN GuangHua WANG GuangCe SONG LiYun WANG ZhiYuan SUN Song ZHOU BaiCheng | 2009 | Chinese Science Bulletin2009，54，3： | 14 |
| 9 | The Trickle-dow n Effect of Fin tech Developme nt:From the Perspective of Urbanization显示文摘The emergence of a digital divide or a lack of internet access may hinder urbanization and adversely affect growth.However,fintech development can help to improve the accessibility and affordability of financial services,particularly for sections of the population formerly excluded from such services.Improved access is expected to stimulate the growth essential for promoting urbanization,possibly alleviating the negative impacts of a digital divide and creating a trickle-down effect.This paper is among the first to investigate the effect of fintech development on urbanization,as indicated by labor transfer from agricultural to non-agricultural sectors in China.It is found that:(i)the digital divide hindered,while fintech development contributed to urbanization;(ii)the positive effect of fintech development on urbanization affects individuals both with and without access to the internet,yielding the so-called trickledown ejfect and thus helping to alleviate the negative consequences of a digital divide;and(Hi)regarding transmission mechanisms,fintech development helps to generate additional jobs and raise income in non-agricultural sectors,stimulating urbanization even for those without access to the internet. | Xun Zhang Ying Tan Zonghui Hu Chen Wang Guanghua Wan | 2020 | China & World Economy2020，28，1： | 13 |
| 10 | Optimal design of anchor cables for slope reinforcement based on stress and displacement fields显示文摘How to determine reasonable position and length of anchor cable is a frequently encountered but not well addressed problem in slope reinforcement projects. In this paper, the variable-modulus elastoplastic strength reduction method(SRM) is used to obtain the stress field, displacement field, and factor of safety of slope. Slope reinforcement using anchor cables is modeled by surface loading, i.e. different distributions of surface loading represent various reinforcement schemes. Optimal reinforcement scheme of anchor cables can be determined based on slope stress and displacement fields. By comparing the factor of safety and stress field before and after slope reinforcement, it is found that better reinforcement results can be achieved if strong reinforcement is applied upon the regions with high stress and large displacement. This method can well optimize the arrangement of anchor cables. In addition,several cases are employed to verify the proposed method. | Guanghua Yang Zhihui Zhong Yucheng Zhang Xudong Fu | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，4： | 12 |
| 11 | Synthesis, characterization and application of a dispersant based on rosin for coal-water slurry显示文摘A rosin derivative and maleopimaric acid diethanolamide(MAD), was synthesized, characterized by FTIR and1 H NMR, and applied as dispersant for the coal-water slurry(CWS) prepared from Chinese Shenfu coal. The CWS application performance investigation shows that the MAD dispersant has better abilities in reducing CWS viscosity and stabilizing the slurry than a commercial dispersant—sulfonated naphthalene-formaldehyde condensate(SNF). The physicochemical property investigation of the two tested dispersants shows that the adsorption amount of the MAD at coal-water interface is much larger than that of SNF, and the MAD has better wetting property than the SNF on the coal surface. It indicated that the excellent capabilities of MAD are related to the adsorption mode of standing upright on the coal surface. Based on the above, the mechanism of dispersion and stabilization of the CWS prepared from MAD dispersant is presented. | Li Junguo Zhang Guanghua Shang Ting Zhu Junfeng | 2014 | International Journal of Mining Science and Technology2014，24，5： | 11 |
| 12 | Geometric Approach for Kinematic Analysis of a Class of 2-DOF Rotational Parallel Manipulators显示文摘Euler angles are commonly used as the orientation representation of most two degrees of freedom(2-DOF) rotational parallel mechanisms(RPMs),as a result,the coupling of two angle parameters leads to complexity of kinematic model of this family of mechanisms.While a simple analytical kinematic model with respect to those parameters representing the geometrical characteristics of the mechanism,is very helpful to improve the performance of RPMs.In this paper,a new geometric kinematic modeling approach based on the concept of instantaneous single-rotation-angle is proposed and used for the 2-DOF RPMs with symmetry in a homo-kinetic plane.To authors' knowledge,this is a new contribution to parallel mechanisms.By means of this method,the forwards kinematics of 2-DOF RPMs is derived in a simple way,and three cases i.e.4-4R mechanism(Omni-wrist III),spherical five-bar one,and 3-RSR&1-SS one demonstrate the validity of the proposed geometric method.In addition,a novel 2-DOF RPM architecture with virtual center-of-motion is presented by aid of the same method.The result provides a useful tool for simplifying the model and extending the application of the RPMs. | DONG Xin YU Jingjun CHEN Bin ZONG Guanghua | 2012 | Chinese Journal of Mechanical Engineering2012，25，2： | 11 |
| 13 | Characteristics of secondary inorganic aerosol and sulfate species in size-fractionated aerosol particles in Shanghai显示文摘Sulfate, nitrate and ammonium(SNA) are the dominant species in secondary inorganic aerosol, and are considered an important factor in regional haze formation. Size-fractionated aerosol particles for a whole year were collected to study the size distribution of SNA as well as their chemical species in Shanghai. SNA mainly accumulated in fine particles and the highest average ratio of SNA to particulate matter(PM) was observed to be 47% in the fine size fraction(0.49–0.95 μm). Higher sulfur oxidation ratio and nitrogen oxidation ratio values were observed in PM of fine size less than 0.95 μm. Ion balance calculations indicated that more secondary sulfate and nitrate would be generated in PM of fine size(0.49–0.95 μm). Sulfur K-edge X-ray absorption near-edge structure(XANES) spectra of typical samples were analyzed. Results revealed that sulfur mainly existed as sulfate with a proportion(atomic basis) more than 73% in all size of PM and even higher at 90% in fine particles. Sulfate mainly existed as(NH4)2SO4 and gypsum in PM of Shanghai. Compared to non-haze days, a dramatic increase of(NH4)2SO4 content was found in fine particles on haze days only, which suggested the promoting impact of(NH4)2SO4 on haze formation. According to the result of air mass backward trajectory analysis, more(NH4)2SO4 would be generated during the periods of air mass stagnation. Based on XANES, analysis of sulfate species in size-fractionated aerosol particles can be an effective way to evaluate the impact of sulfate aerosols on regional haze formation. | Shilei Long Jianrong Zeng Yan Li Liangman Bao Lingling Cao Ke Liu Liang Xu Jun Lin Wei Liu Guanghua Wang Jian Yao Chenyan Ma Yidong Zhao | 2014 | Journal of Environmental Sciences2014，26，5： | 10 |
| 14 | Numeration and type synthesis of 3-DOF orthogonal translational parallel manipulators显示文摘Low-degree-of-freedom (Low-DOF) parallel manipulators (PMs) have drawn extensive interests, particularly in type synthesis in which two main formal approaches were established by using the reciprocal screw system theory and Lie group theory. This paper aims at numeration and type synthesis of orthogonal translational parallel manipulators (OTPMs) by resorting to an integration of the group- based method and graphical representation of the topology. For this purpose, the concept of Cartesian DOF-characteristic matrix, orig- inated from displacement subgroup and displacement submanifold, is proposed. A new approach based on the combination of the atlas of Cartesian DOF-characteristic matrix and the displacement group-theoretic method is addressed for both exhaustive classi cation and type synthesis of OTPMs. The proposed approach is prone to construct an orthogonal structure and is easy to realize the complete clas- si cation and exhaustive enumeration of this class of low-DOF PMs. | Jingjun Yu Jian S. Dai Shusheng Bi Guanghua Zong | 2008 | Progress in Natural Science:Materials International2008，18，5： | 10 |
| 15 | An iterative Rankine BEM for wave-making analysis of submerged and surface-piercing bodies in finite water depth显示文摘A 3-D iterative Rankine Boundary Element Method(BEM)for seakeeping problem in time domain is developed in the framework of linear potential theory.Waves generated by both submerged and surface-piercing bodies moving at a constant forward speed in otherwise calm water,and the resultant steady wave pattern,wave profile and resistance are computed to validate this newly-developed code.A rectangular computational domain moving with the same forward speed as the body is introduced,in which an artificial damping beach is installed at an outer portion of the free surface except the downstream side for satisfying the radiation condition.The velocity potential on the ship hull and the normal velocity on the free surface are obtained directly by solving the boundary integral equation,with the Rankine source used as the kernel function.An iterative time-marching scheme is employed for updating both kinematic and dynamic free surface boundary conditions to stabilize the calculation.Extensive results including the wave patterns,wave profiles and wave resistances for a submerged spheroid and a Wigley hull with forward speed are presented to validate the efficiency of the proposed 3-D time-domain higher-order approach.Finally,the sensitivity of ship-generated waves to the water depth is investigated.Computed results show satisfactory agreement with the corresponding experimental data and other numerical solutions. | HE Guanghua | 2013 | Journal of Hydrodynamics2013，25，6： | 9 |
| 16 | Comparative Analysis of Nutrient Composition of Caulerpa lentillifera from Different Regions显示文摘This study investigated the difference of nutrient composition in Caulerpa lentillifera collected from different regions.The nutrient compositions of C.lentillifera from China's Hainan and Shandong provinces were determined and compared with those from Semporna(Malaysia),Sabah(Malaysia),Petchburi(Thailand),and two other species of seaweeds(Malaysia).The results showed that the polysaccharide and protein contents of C.lentillifera from Hainan(44.82%±0.98%and 12.5%±0.70%),Shandong(43.22%±1.42%and 14.7%±0.72%),Petchburi(59.27%±2.31%and 12.49%±0.30%),and Sabah(44.02%±2.01%and 19.38%±1.48%)were higher than those of Eucheuma cottonii(26.49%±3.01%and 9.76%±1.33%)and Sargassum polycystum(33.49%±1.70%and 5.40%±0.07%),respectively.The polyunsaturated fatty acid contents in C.lentillifera from Hainan(29.98%)and Shandong(22.11%)were higher than that in Semporna(16.76%±0.27%),Sabah(9.49%),and S.polycystum(20.34%±0.43%),but lower than that in E.cottonii(51.55%±0.57%).In Caulerpa lentillifera of Hainan and Shandong provinces,the essential amino acid(EAA)/total amino acid(TAA)ratios were 35.22%and 38.78%,respectively;and the EAA/ETAA ratios were 54.36%and 63.35%,respectively.The EAA composition of C.lentillifera was close to the ideal model of Food and Agriculture Organization/World Health Organization.C.lentillifera was rich in mineral elements,including calcium((3315.85±127.55)mg(100 g)^-1 and(3728.35±92.38)mg(100 g)^-1),magnesium((6715.74±82.58)mg(100 g)^-1 and(8128.59±242.72)mg(100 g)^-1),and trace elements,including iron((510.65±5.47)mg(100 g)^-1 and(1972.97±183.35)mg(100 g)^-1),selenium((1.04±0.08)mg(100 g)^-1 and(0.83±0.15)mg(100 g)^-1),and zinc((33.90±0.13)mg(100 g)^-1 and(11.75±2.05)mg(100 g)^-1).These results showed that C.lentillifera was more nutritious than S.polycystum or E.cottonii in terms of polysaccharide,protein,and fatty acid contents.Furthermore,both C.lentillifera species collected from Hainan and Shandong provinces show more basic nutrients.Therefore,C.lentillifera has important development and application prospects. | ZHANG Meijian MA Yurong CHE Xinyi HUANG Zumei CHEN Peng XIA Guanghua ZHAO Meihui | 2020 | Journal of Ocean University of China2020，19，2： | 8 |
| 17 | A unified approach to type synthesis of both rigid and flexure parallel mechanisms显示文摘Type synthesis of both rigid and compliant parallel mechanisms has become a hot issue in the field of mechanisms and robotics research in recent years. A unified approach to type synthesis of the two classes of mechanisms, however, has not been referred and investigated up to date. Based on the state-of-art analysis for several major type synthesis approaches related to rigid and compliant mechanisms, respectively, it proves feasible to establish a unified methodology for type synthesis of these two classes of mechanisms. That is a synthesis philosophy in terms of the hierarchy mapping between mathematic, physical, and mechanical building blocks in the framework of screw theory, as addressed in this paper. The key point of the proposed method lies in establishing the mapping among three different building blocks (i.e. geometric building block, kinematic or constraint building block, and mechanical building block). As a result, it makes the whole type synthesis process simple and visible. By using the proposed method, two examples are taken to verify the effectiveness for the type synthesis of both rigid and flexure mechanisms. The content of this paper may provide a theoretical frame for constructing a visualized algorithm or software about the unified type synthesis (or conceptual design) of both rigid and flexure parallel mechanisms. | YU JingJun LI ShouZhong PEI Xu BI ShuSheng ZONG GuangHua | 2011 | Science China(Technological Sciences)2011，54，5： | 8 |
| 18 | China's Urban Employment and Urbanization Rate:A Re-estimation显示文摘The present paper argues that China's existing population and employment statistics are misleading,and have failed to include many of the migrant and labor force flows between urban and rural areas.The paper reconciles the differences between official census data and other survey statistics and attempts to recalculate China's urban population and employment figures.Our analyses indicate that official statistics of 2012 underestimate China's urban employment by approximately 47 million while overestimating rural employment by 31 million.The adjusted urbanization rate exceeded 55 percent in 2012,almost 3 percentage points higher than the official statistics.Nevertheless,there remains much potential for rural-to-urban migration.More specifically,if the current bottlenecks in household registration,social security and public welfare systems can be removed or relaxed,China's urbanization rate could rise by another 10 percentage points or even more over the next decade. | Xiaolu Wang Guanghua Wan | 2014 | China & World Economy2014，22，1： | 7 |
| 19 | Enrichment and hydrogen production by marine anaerobic hydrogen-producing microflora显示文摘Acid, alkali, heat-shock, KNO3 and control pretreatment methods applied to anaerobic sludge were evaluated for their ability to selectively enrich the marine hydrogen-producing mixed microflora. Sea-water culture medium was used as the substrate. The hydrogen yield of pretreated microflora was higher than that of the un-pretreated control (P < 0.05). Among the pretreatment methods studied, heat-shock pretreatment yielded the greatest hydrogen production, which was 14.6 times that of the control. When the effect of initial pH on hydrogen production of heat-shock pretreated samples was studied, hydrogen was produced over the entire pH range (pH 4 - 10). The hydrogen yield peaked at initial pH 8 (79 mL/g sucrose) and then steadily decreased as the initial pH increased. Sucrose con-sumption was high at neutral initial pH. During the process of hydrogen production, pH decreased gradually, which indicated that the acquired microflora consisted of acidogenic bacteria. | CAI JinLing WANG GuangCe LI YanChuan ZHU DaLing PAN GuangHua | 2009 | Chinese Science Bulletin2009，54，15： | 7 |
| 20 | Novel Annulus-shaped Flexure Pivot in Rotation Application and Dimensionless Design显示文摘Large-deflection flexure pivot is widely used in high precision rotation application, but there are less flexure configurations and simple and convenient design methods. This paper presents a novel large-deflection curved-compliant annulus-shaped flexure pivot composed of six curved beam flexure elements. It can offer more than 10°angular stroke theoretically. Firstly, main-motion pseudo-rigid-body method is introduced to establish the flexure pivot model. Although pseudo-rigid-body method can be used to analyze the large-deformation flexure pivot performance, the method is definitely a laborious and difficult task for designing this novel flexure pivot. In order to simply the designing process, dimension-design graphs based on the parametric models and finite element analysis is presented. Using the dimension-design method as a tool, the designers can determine the optimal geometry rapidly, based on the stiffness and rotation demands of an annulus-shaped flexure pivot. Finally, dimension-design graph examples are given whose primary design aims to achieve a rotation stroke of annulus-shaped flexure pivot. The finite element analysis results show that the relative designing error between anticipative rotation stroke and graph design result is less than 4%. The dimensionless method used in designing annulus-shaped flexure pivot can reduce design process in both time and complexity. The novel annulus-shaped flexure pivot and dimension-design method are helpful supplement to configuration and design method of large-deflection flexure pivot. | BI Shusheng ZHAO Shanshan SUN Minglei YU Jingjun ZONG Guanghua | 2009 | Chinese Journal of Mechanical Engineering2009，22，6： | 7 |
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